Question about 1995 Lexus ES 300

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95 Lexus ES 300 check engine light is on and the overdrive off light is flashing

In my 95 Lexus ES 300, the check engine light came on and the overdrive off light started flashing, the car did not have enough power to accelerate from a complete stop because the transmission will not shift to second gear until after a long delay.
After hooking it to the diagnostic machine my mechanic told me the solenoid shifter needs to be replaced, and it could be that the solenoid shifter has damaged the car computer, so after getting the solenoid shifter replaced, the car drove fine for a while but then the check engine light came on and the overdrive off light started flashing again. The car still has the same symptoms; the only good thing is that the transmission is now a bit faster to shift to second gear. A different mechanic told me that maybe I do not have to replace the car computer and just replace the two knock sensors, I got the knock sensors replaced but that did not help, my check engine light and overdrive off light are still on and the car does not have enough power to accelerate from a complete stop, after driving it for a while. Any ideas what the problem might be? Do I really have to replace the car computer?

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  • ASamanthaww Sep 29, 2008

    check engine light is on, the O/D light is lashing all after the car is warmed up. When the gas petal is depressed with car in drive the motor seems to fall on it's face , if by chance you can get the engine to accelerate(with trans. in park),it will start to break up at 3250 RPM's.

  • grivera29 Nov 11, 2008

    Transmission warms up an drives fine...but later on fater a while starts to lag on accelaration and OD light flashes...difference with my lexus is that the Check engine light has been on for months

  • hpearson216 Dec 16, 2008

    I am having a similar problem but in a 93 ES 300 but only the o/d light flashes. I had the transmission swapped for a used one and still had the same problem. The diagonostics say replace solonoid and/ or possibly computer. Any suggestions?

  • Anonymous Mar 19, 2014

    Car is slow to accelerate, has no power. engine runs smooth. was told maybe converter or another was plugs. Don't think is plugs its running too smooth. Trans fluid was low, thought maybe that. new fluid no results. Ideas?

  • Anonymous Mar 21, 2014

    if the knock sensors need to be replaced...will it hurt the engine or trannie if still driven till you save the money??

  • Anonymous Mar 21, 2014

    sometimes don't shift into hi gear.. will this damage anything till we save money up to get news knock sensors installed?

  • Anonymous Mar 24, 2014

    trans solenoid e diagnosed,engine light comes on for 2-3 days then off.I can't tell the difference in the way the car drives,ant ideas?

  • Anonymous Mar 26, 2014

    So I'm accelerating to get on the highway once I get about 55 and my cargoes into overdrive the check engine light starts flashing and I lose accelerating power


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Chances are you don't have to replace the computer. the reason i tell you this is because you did not mention that the car is running lousy. no complaints of rough idle or missfire or hard starting. chances are that your engine speed sensor which sends the signal to the computer which then controls the transmission is most likely the culprit.. and it could just bhe that there is a loose connection between the two. if that is ok then your transmission control module is faulty. this is not the main computer, but the gobetween the trans and the ecm.. hope this helps please rate this...thanks(btw....the knock sensors control timing not the trans mission)

Posted on Sep 03, 2008

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